Home / 133,074.20-199,611.30-69,869.90

Finding the Fourth Proportional to 133,074.20, 199,611.30 and 69,869.90

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Solution

The fourth proportional to 133,074.20, 199,611.30 and 69,869.90 is: 104,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,074.20 : 199,611.30 = 69,869.90 : x
  2. Step 2: Convert to fraction form
    133,074.20/199,611.30 = 69,869.90/x
  3. Step 3: Cross multiply
    133,074.20x = 199,611.30 × 69,869.90
  4. Step 4: Simplify right side
    133,074.20x = 13,946,821,569.87
  5. Step 5: Solve for x
    x = 13,946,821,569.87/133,074.20
  6. Step 6: Final answer
    x = 104,804.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.